[Evaluation of 90 kV Beam with 0.15 mm Cu Filter in Chest Radiography Using CsI-flat Panel Detector].

Purpose: To compare the visibility of anatomic structure in chest radiography acquired with different beam quality (120 kV beam and 90 kV beam with 0.15 mmCu) using CsI-flat panel detector.

Method: Pair image obtained by different beam quality of 100 person's chest radiographies which were taken periodical health examination were compared with the visibility of normal structures (pulmonary vessels) and abnormal opacities by two pulmonologists and four radiological technologists.

Types of organic solvents used in small- to medium-scale industries in Japan; a nationwide field survey.

Objective: The aim of the present survey is to identify organic solvents commonly used in various workplaces in Japan.

Methods: A total of 24 occupational health service institutions (OHSI) distributed nationwide in Japan offered data on types of solvent workplaces, types of solvents used therein, and the solvent concentrations surveyed in a 2-month period between April and May 1996 to form a data base (OHSI data base, consisting of 1597 cases). Separately, Kyoto Industrial Health Association (KIHA) offered information on 948 cases studied during a 1-year period ranging from April 1995 to March 1996 (KIHA data base).

[Bacteriological and clinical studies on cefozopran in pediatric field].

We carried out clinical studies on cefozopran (CZOP, SCE-2787). The results are summarized as follows. Treatment with CZOP was made in 17 cases of pediatric bacterial infections including 2 cases of purulent tonsillitis, 11 cases of acute pneumonia and 2 cases each of urinary tract infections and enteritis.